U.S. patent application number 10/871828 was filed with the patent office on 2006-01-19 for repositionable trigger system.
Invention is credited to Ronald B. Little.
Application Number | 20060010746 10/871828 |
Document ID | / |
Family ID | 35597914 |
Filed Date | 2006-01-19 |
United States Patent
Application |
20060010746 |
Kind Code |
A1 |
Little; Ronald B. |
January 19, 2006 |
Repositionable trigger system
Abstract
This invention replaces a stationary handgrip with a
repositionable trigger system which allows the user to quickly
reconfigure the trigger system to offset the trigger to either the
right or to the left. This allows the user to protect his shooting
hand from return fire from the enemy. A previous design from the
inventor was a minimal exposure weapon which protected all of the
shooter, with exception of the shooter's firing hand, by allowing
the shooter from behind a wall or a corner. The present invention
complements the previous invention as well as other weapons by
protecting the shooter's hand.
Inventors: |
Little; Ronald B.;
(Florence, MS) |
Correspondence
Address: |
Ronald B. Little
181 Hickory Ridge Road
Florence
MS
39073
US
|
Family ID: |
35597914 |
Appl. No.: |
10/871828 |
Filed: |
June 18, 2004 |
Current U.S.
Class: |
42/69.01 |
Current CPC
Class: |
F41C 9/00 20130101; F41A
19/09 20130101; F41C 23/04 20130101 |
Class at
Publication: |
042/069.01 |
International
Class: |
F41A 19/00 20060101
F41A019/00 |
Claims
1) A trigger system designed to be relocated from a normal position
to protect the firing hand of the user from return fire by
offsetting the handgrip to a position which could be shielded from
hostile fire; said trigger system comprising: a) said handgrip
projecting from the inferior surface of the lower receiver of the
weapon; b) a trigger mount adapter connecting said trigger system
to said lower receiver of said weapon; c) a primary trigger
interface control rod allowing control of primary trigger from a
posterior location through an orifice in said trigger mount
adapter; d) a superior support arm connected to the inferior
surface of said trigger mount adapter allowing bilateral rotation
of said superior support arm about said trigger mount adapter said
rotation is primarily in a perpendicular plane in relation to said
lower receiver; e) an inferior support arm connected to the
inferior surface of said superior support arm allowing for
rotational movement of said inferior support arm about said
superior arm mainly in a perpendicular plane in respect to said
lower receiver; f) a secondary trigger mounted in said handgrip; g)
control linkages with associated pivot points connecting said
secondary trigger to said primary trigger interface control rod
allowing said weapon to be fired with said secondary trigger; h) a
means for securing said handgrip in position on said lower receiver
when said weapon is to be fired with said primary trigger; i) a
means for securing said hand grip in position on said inferior
support arm when said handgrip is positioned laterally in respect
to said weapon when said weapon is to be fired by said secondary
trigger preventing exposure to said return fire; j) an improved
spring and detent for said weapon safety lever which allows for
said spring and said detent to be housed entirely in said lower
receiver; k) a retainer which mates between said lower receiver and
said trigger mount adapter allowing for the repositioning of said
handgrip while keeping captive said weapon safety lever, said
spring and said detent;
2) The trigger system claimed in claim 1, wherein said handgrip
slides upon said superior support arm and said inferior support
arm, said handgrip contains locking mechanisms which allows said
handgrip to be reposition and secured to a lateral position in
respect to said weapon when said weapon is to be fired by said
secondary trigger, said superior support arm as well as said
control linkages may be telescoping in nature to extend the lateral
displacement of said handgrip during said secondary trigger firing
of said weapon, said handgrip also utilizes said locking mechanisms
to secure said handgrip snuggly around said trigger mount adapter,
and said retainer which is securely fastened to said lower receiver
while said weapon is configured in the normal or neutral position
when said weapon is to be fired by said primary trigger.
3) The trigger system claimed in claim 1, wherein said trigger
mount adapter replaces the trigger guard assembly of said lower
receiver utilizing at least one of the existing roll pin holes of
said trigger guard located in said lower receiver for mounting of
said trigger mount adapter, said trigger system also utilizes the
existing handgrip mounting screw hole located in said lower
receiver for mounting of said trigger mount adapter.
4) The trigger system claimed in claim 3, wherein said trigger
mount adapter contains a detent to secure said superior support arm
bilaterally either to the right at a horizontal position or to the
left at a horizontal position or to the normal neutral position,
said trigger mount adapter allows for the rotation of said superior
support arm into said bilateral left or right horizontal
positions.
5) The trigger system claimed in claim 4, wherein said trigger
mount adapter allows for said primary trigger interface control rod
to be accessed and utilized in order for said weapon to be fired
through said control linkages by use of said secondary trigger to
apply a force through said control linkages through said primary
trigger interface control rod to pull said primary trigger.
6) The trigger system claimed in claim 5, wherein said trigger
mount allows for mounting of said trigger system to the M-16, AR-15
series rifles without modification of said lower receiver allowing
said trigger system to be retrofit to existing said M-16, said
AR-15 rifles.
7) The trigger system claimed in claim 1, where in said secondary
trigger provides an extension arm for use in applying a force to
one of said control linkage located in said inferior support arm in
order to fire said weapon, said extension arm is also utilized to
lock said handgrip into normal position for firing by said primary
trigger.
8) The trigger system claimed in claim 7, wherein said superior
support arm provides an opening in which said extension arm of said
secondary trigger is housed and is used to lock said handgrip into
normal position in which the weapon is fired by said primary
trigger.
9) The trigger system claimed in claim 7, wherein said inferior
support arm provides an opening in which said extension arm of said
secondary trigger is given access to said control linkage which is
used to transmit a force to said primary trigger interface control
rod to pull said primary trigger in order to fire said weapon.
10) The trigger system claimed in claim 2, wherein said handgrip
may contain moveable flaps which may be spring held into their
upright position, said moveable flaps may be pushed open when said
handgrip is extended down and rotated into the firing position for
said secondary trigger operation.
11) The trigger system claimed in claim 10, wherein said handgrip
provides locking mechanisms to maintain said secondary trigger in
concealed position and said handgrip in normal position until
deployed, said handgrip also provides said locking mechanisms to
secure said handgrip in position along said inferior support arm
and said handgrip provides a release mechanism for said secondary
trigger deployment to support said secondary trigger firing of said
weapon.
12) A trigger system designed for retrofit to current rifles
whereas said trigger system can be relocated real time to a
position lateral to the current position in order to protect the
firing hand of the user from return fire, said trigger system
comprising; a) a handgrip projecting from the inferior surface of
the lower receiver of the weapon; b) a trigger mount adapter
connecting said trigger system to said lower receiver of said
weapon utilizing current mounting holes and screw holes of said
lower receiver thereby allowing retrofit of said trigger system to
the current designs of said rifles; c) a primary trigger interface
control rod allowing control of primary trigger from a posterior
location through an orifice in said trigger mount adapter; d) a
superior support arm connected to the inferior surface of said
trigger mount adapter allowing bilateral rotation of said superior
support arm about said trigger mount adapter said rotation is
primarily in a perpendicular plain in relation to said lower
receiver; e) an inferior support arm connected to the inferior
surface of said superior support arm allowing for rotational
movement of said inferior support arm about said superior arm
mainly in to a parallel position in respect to said lower receiver;
f) a secondary trigger mounted in said handgrip; g) control
linkages with associated pivot points connecting said secondary
trigger to said primary trigger interface control rod allowing said
weapon to be fired with said secondary trigger; h) a means for
securing said handgrip in position on said lower receiver when said
weapon is to be fired with said primary trigger; i) a means for
securing said hand grip in position on said inferior support arm
when said handgrip is positioned laterally in respect to said
weapon when said weapon is to be fired by said secondary trigger
preventing hand exposure to said return fire;
13) The trigger system claimed in claim 12, where in said trigger
system may include an improved spring and detent for said weapon
safety lever which allows for said spring and said detent to be
housed entirely in said lower receiver;
14) The trigger system in claim 12, where in said trigger system
may include a retainer which mates between said lower receiver and
said trigger mount adapter allowing for the repositioning of said
handgrip while keeping captive the safety lever spring and
detent;
15) The trigger system claimed in claim 12, wherein said handgrip
may be positioned and secured along said superior support arm and
said inferior support arm, said handgrip contains locking
mechanisms which allows said handgrip to be reposition and secured
to a lateral position in respect to said weapon when said weapon is
to be fired by said secondary trigger, said handgrip also utilizes
said locking mechanisms to secure said handgrip snuggly around said
trigger mount adapter, and said retainer which is securely fastened
to said lower receiver while said weapon is configured in the
normal or neutral position when said weapon is to be fired by said
primary trigger.
16) The trigger system claimed in claim 12, wherein said trigger
mount adapter, when retrofitting to the M-16, or AR-15 replaces the
trigger guard assembly of said lower receiver utilizing at least
one of the existing roll pin holes of said trigger guard located in
said lower receiver for mounting of said trigger mount adapter,
said trigger system also utilizes the existing handgrip mounting
screw hole located in said lower receiver for mounting of said
trigger mount adapter.
17) The trigger system claimed in claim 16, wherein said trigger
mount adapter allows for said primary trigger interface control rod
to be accessed and utilized in order for said weapon to be fired
through said control linkages by use of said secondary trigger to
apply a force through said control linkages through primary trigger
interface control rod to pull said primary trigger for firing of
said weapon.
18) The trigger system claimed in claim 1, where in said secondary
trigger provides an extension arm for use in applying a force to
one of said control linkage located in said inferior support arm in
order to fire said weapon, said extension arm is also utilized to
lock said handgrip into normal position for firing by said primary
trigger, said secondary trigger is deployed by a releasing latch
contained in said handgrip.
19) The trigger system claimed in claim 15, wherein said superior
support arm provides an opening in which said extension arm of said
secondary trigger is housed and is used to lock said handgrip into
normal position in which said weapon is fired by said primary
trigger.
20) The trigger system claimed in claim 12, where in said superior
support arm as well as said control linkages may be telescoping in
nature to extend the lateral displacement of said handgrip during
said secondary trigger firing of said weapon.
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to firearms and, more
particularly, pertains to minimum exposure weapons which allow the
user to fire a weapon from a covered position with minimal exposure
to enemy fire.
[0003] 2. Description of Prior Art
[0004] The use of firearms is known in prior art. More
specifically, firearms heretofore devised and utilized are known to
consist basically of familiar, expected and obvious structural
configurations, notwithstanding the myriads of designs encompassed
by the crowded prior art which have been developed for the
fulfillment of countless objectives and requirements.
[0005] Known prior art includes U.S. Pat. Nos. Des 324,557;
6,637,141B1; 6,517,133 B2; 6,397,507 B1; 6,070,355; 5,675,112;
4,878,305; 4,827,652; 4,677,781; 3,369,316; 2,826,848; 2,771,697;
and 1,386,247.
[0006] The inventive device substantially departs from the
conventional concepts and designs of the prior art and in doing so
provide a weapon primarily developed for the purpose of allowing a
user to fire the weapon with a minimum of exposure from enemy fire.
A previous invention of the inventor, was a Minimum Exposure
Weapon, which allows a shooter to fire a weapon from behind a wall
with minimum exposure to the shooter with exception to the
shooter's trigger hand, which remains exposed. The present
invention will effectively mate to the Minimum Exposure Weapon, as
well as other weapons, and reduce the exposure from enemy fire to
that hand.
SUMMARY OF THE INVENTION
[0007] Although the repositionable trigger system was designed with
the M-16 type weapons in mind, it is certainly not limited to that
application, but for the current discussion the M-16, will be the
focus. The repositionable trigger system was designed to replace
the handgrip, and the trigger guard on the lower receiver of the
M-16. The invention allows the shooter to extent the handgrip
downward and to pivot the handgrip either to the right or to the
left a few inches. The hand grip contains the linkages necessary
and a secondary trigger to allow the weapon to be fired by exerting
a force on the primary trigger through the primary trigger
interface control rod. The system was designed with the criteria to
be able to retrofit existing weapon designs with a minimum of
changes. The invention when installed on current M-16, looks very
much like the current hand grip and allows the user to fire the
weapon using the primary trigger. But when the user wants to
protect his hand, the invention will rapidly offset either to the
right or to the left to allow the hand to be protected behind a
wall.
[0008] When coupled to the inventers previous invention the Minimum
Exposure Weapon, the shooter's entire body can be shielded, behind
a wall, while he fires his weapon. The invention also contains a
special retainer which is used to hold captive the improved detent
and spring, used in the safety-Fire lever function. Normally, when
the handgrip is removed, from the lower receiver, the detent and
spring fall out of the detent and spring orifice. The spring is
actually housed in the upper hand grip. But by using a shorter
spring and detent with the retainer, the handgrip can be removed
with out impeding the Safe-Fire lever.
[0009] To operate the trigger system, the release screw would be
unscrewed from the bottom of the hand grip. This step could be
accomplished before a user suspected that he may want to utilize
the unique feature of the trigger system. Then, when needed, the
release lever is depressed and the spring loaded secondary trigger
rotates out. The secondary trigger also functions as a holding pin,
so once it is deployed the handgrip can be extended and rotated
into position. The internal control rods and linkages are
automatically aligned to support the function of the secondary
trigger to fire the weapon.
[0010] To convert back to the normal mode, where the primary
trigger is used and the secondary trigger in housed in the
handgrip, the user would swing the handgrip back to the bottom and
slide the grip up mate with the lower receiver. When in the upper
position the secondary trigger can be pulled back where it will
function as a locking pin. It will be latched into position by the
release lever. Because of the design, the secondary trigger can
only fire the weapon when it is fully extended.
[0011] It is an object of the present invention to provide a
trigger system which will complement a weapon which can be carried
and used as a conventional weapon and when necessary this weapon
can be converted real time to support firing from behind a corner
of a building or object; this trigger system supports this object
by allowing the user's hand to be under cover while firing.
BRIEF DESCRIPTION OF THE DRAWINGS
[0012] FIG. 1 is a profile view of a lower receiver with the
present invention installed and configured to use the primary
trigger.
[0013] FIG. 2 is a profile view of a lower receiver with the
present invention installed and configured to use the secondary
trigger.
[0014] FIG. 3 is profile view detailing the trigger mount adapter
and the Fire-Safe detent spring retainer.
[0015] FIG. 4 details the secondary trigger in the fire
position.
[0016] FIG. 5 details the secondary trigger in the primary trigger
fire mode.
[0017] FIG. 6 details the secondary trigger and linkages when
fired.
[0018] FIG. 7 details the secondary trigger and linkages prior to
firing.
[0019] FIG. 8 is an isometric projection of the handgrip off set to
the left side.
[0020] FIG. 9 is an isometric projection of the handgrip off set to
the right side.
[0021] FIG. 10 is a top view of the trigger mount adapter.
[0022] FIG. 11 is the left end view of the trigger mount
adapter.
[0023] FIG. 12 is a lateral view of the trigger mount adapter.
[0024] FIG. 13 is the right end view of the trigger mount
adapter.
[0025] FIG. 14 is the bottom view of the trigger mount adapter.
[0026] FIG. 15 is a lateral view of the superior support arm.
[0027] FIG. 16 is an end view of the superior support arm.
[0028] FIG. 17 is a lateral view of the inferior support arm.
[0029] FIG. 18 is an end view of the inferior support arm.
[0030] FIG. 19 is the end view of the Fire-Safe detent spring
retainer.
[0031] FIG. 20 is a side view of the Fire-Safe detent spring
retainer.
[0032] FIG. 21 is an isometric view of the Fire-Safe detent spring
retainer.
[0033] FIG. 22 is the top view of the Fire-Safe detent spring
retainer.
[0034] FIG. 23 is a left end view of the primary trigger interface
control rod installed in the trigger mount adapter.
[0035] FIG. 24 is a lateral view of the primary trigger interface
control rod installed in the trigger mount adapter.
[0036] FIG. 25 is an end view of the primary trigger interface
control rod.
[0037] FIG. 26 is a lateral view the primary trigger interface
control rod.
[0038] FIG. 27 is the top view the primary trigger interface
control rod.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0039] Turning now to the drawings, the repositionable trigger
system embodying the present invention is indicated generally by
the reference numeral 10 in FIG. 1. The repositionable trigger
system 10 is attached to the lower receiver 30 using the trigger
mount adapter 20. The configuration is shown for firing using the
primary trigger 18. In FIG. 2, the repositionable trigger system 10
is now configured to be fired using the secondary trigger 14 which
is housed in handgrip 12.
[0040] FIG. 3 details a cutaway view of the trigger mount adapter
20 as well as a cutaway view of the Safe/Fire detent 32 and spring
28 which is held in place by retainer 60 which is sandwiched
between trigger mount adapter 20 and lower receiver 30. Additional
items shown in this view through the handgrip 12 which has been
outlined are the inferior support arm 26 which is connected to the
superior support arm 24 which in turn is connected to the trigger
mount adapter 20. Fastener 38 secures handgrip 12 into primary
trigger 18 mode firing. Detailed in the cutaway view of trigger
mount adapter, are the primary trigger interface control rod 22,
the mounting bolt 36 which mounts the trigger mount adapter 20 to
the lower receiver 30 with the retainer 60 retaining the Safe/Fire
detent 32 and spring 28 into proper position. Detent 34 is shown
which will provide positive stops for superior support arm 24.
[0041] FIG. 4 and FIG. 5 detail the working relationship of the
secondary trigger 48 with the control linkages 42, 44, and 46. FIG.
5 shows the position of secondary trigger 48, held in place by
trigger release lever 50, when configured for primary trigger 18
firing. In this position secondary trigger 18 is out of reach of
the control linkage 46. In this position, the posterior arm of
secondary trigger 48 acts as a retaining pin interfacing opening 54
(FIG. 16) in superior support arm 24. When the handgrip 12 is
deployed, in FIG. 4, secondary trigger displaces control linkage 42
to fire the weapon.
[0042] FIG. 6 shows secondary trigger 48 in position when the
weapon is fired. The posterior arm of secondary trigger 48 has
displaced lever 42 and through displacements of levers 44 and 46,
the primary trigger interface control rod 52 has pulled the primary
trigger 18 to fire the weapon. FIG. 7 details these components
prior to the pulling of the secondary trigger.
[0043] FIG. 8 shows the repositionable trigger system isolated from
the lower receiver while it is offset to the left side. Wing flap
11 (not seen) has been rotated into a horizontal position under
superior support arm 24. The two holes 25 are used to aid in
mounting trigger mount adapter 20. FIG. 9 shows the repositionable
trigger system isolated from the lower receiver while it is offset
to the right side. Wing flap 13 (not seen) has been rotated into a
horizontal position under superior support arm 24.
[0044] FIGS. 10, 11, 12, 13, and 14 show the trigger mount adapter
20 in the top view, left end view, side view, right end view, and
bottom view. FIG. 15 is a lateral view of the superior support arm
24 and FIG. 16 is the end view of the same showing opening 54 which
is used as a receptacle for the posterior arm of the secondary
trigger 48 to secure the handgrip into position. FIG. 17 is the
lateral view of the inferior support arm 26. A cut away section
reveals the securing fastener which mates with the securing screw
(FIG. 3 item 38) to secure the handgrip 12 into position. FIG. 18
is a left lateral view of the inferior support arm 26 detailing
opening 56 which allows the posterior arm of secondary trigger 48
to push the linkage 42 (FIG. 4) which in turn fires the weapon. Not
shown are the return springs that return the linkages and the
trigger to the ready to fire positions.
[0045] FIGS. 19, 20, 21, and 22 are the end view, side view, a
prospective view, and a top view. These views detail the
Safety/Fire Spring 28 (FIG. 3) and detent 32 (FIG. 3) retainer
whose primary purpose is to keep the detent and spring in proper
position when the handgrip (12) is repositioned in a lateral
position. The secondary purpose of the retainer is to eliminate
long term wear from occurring from the lower receiver (typically
manufactured from aluminum) from the upper handgrip being mated and
unmated. Item 62 is the hole that bolt 36 (FIG. 3) passes through
to screw into the trigger mount adapter 20 (FIG. 3). FIGS. 23, 24,
25, 26 & 27 detail the primary trigger interface control rod.
Notch 64 is used to interface lever 46 (FIG. 6).
[0046] It is noted that the embodiment of the repositionable
trigger system described herein in detail for exemplary purposes is
of course subject to many different variations in structure,
design, application and methodology. Because many varying and
different embodiments may be made within the scope of the inventive
concept(s) herein taught, and because many modifications may be
made in the embodiment herein detailed in accordance with the
descriptive requirements of the law, it is to be understood that
the details herein are to be interpreted as illustrative and not in
a limiting sense.
* * * * *